Pinned graphs are not cleaned up when working on new log directory or after restarting server.
Screenshot shows the issue. I get the error about hitting max limit of pins, however there are no graphs in pinned section, so i cannot unpin them. This happened because I pinned some graphs, then deleted the log directory, re-started my training process but with newly named graphs. This means the memory of pinned graphs is still in the server somewhere, but i cannot unpin them now. I've tried restarting the tensorboard server. I guess i need to delete some state files but i don't know where to find them.